Figure 7

The transcript abundance of genes which were involving to damaged-DNA repairing in leaf of Populus alba under Salt, UV-B radiation and UV-B&Salt treatments for different treatment duration.

0 h, 1 h, 2 h, 4 h, 6 h and 8 h means the UV-B radiation and salt treatment duration was 0 h, 1 h, 2 h, 4 h, 6 h and 8 h respectively, 12 h and 16 h means 8 h treatment duration (UV-B) in the first day plus the another 4 h and 8 h treatment duration separately in the second day. (a–e) separately mean transcript change of PaDDB1, PaDDB2, PaMSH2, PaMSH6 and PaPHR gene. The transcript abundance in the control treatment (0 h) was set at 1. Data shown are the average mean ± SE of three replicates (n = 3). Different asterisks indicated statistical significance among different treatment duration according to Tukey’s test, * in present at the P < 0.05 level, ** in present at the P < 0.01 level.